Improvements in purification of silver nanowires by decantation and fabrication of flexible transparent electrodes. Application to capacitive touch sensors
Improvements in purification of silver nanowires by decantation and fabrication of flexible transparent electrodes. Application to capacitive touch sensors
复制标题
DOI：
10.1088/0957-4484/24/21/215501
复制
发表时间：
2013-05-31
期刊：
影响因子：
3.5
通讯作者：
Simonato, Jean-Pierre
中科院分区：
文献类型：
--
作者：
Mayousse, Celine;Celle, Caroline;Simonato, Jean-Pierre
由金属纳米线（特别是银纳米线（AgNW））制成的透明柔性电极作为透明导电氧化物的极有前途的替代物出现在未来的光电器件中。虽然在过去的几年里已经取得了显著的进展，但在高质量银纳米线溶液的合成和高性能电极的制备工艺方面仍有一些改进的空间。我们表明，常用的纯化过程可以大大简化，通过倾析。使用该方法，可以通过喷涂来制造柔性电极，其在可见光谱中的90%透明度下具有低于25 Ω sq（-1）的薄层电阻。这些电极用于制造可操作的透明柔性触摸屏。据我们所知，这是第一个报道的基于AgNW的触摸传感器依赖于电容技术。
Transparent flexible electrodes made of metallic nanowires, and in particular silver nanowires (AgNWs), appear as an extremely promising alternative to transparent conductive oxides for future optoelectronic devices. Though significant progresses have been made the last few years, there is still some room for improvement regarding the synthesis of high quality silver nanowire solutions and fabrication process of high performance electrodes. We show that the commonly used purification process can be greatly simplified through decantation. Using this process it is possible to fabricate flexible electrodes by spray coating with sheet resistance lower than 25 Omega sq(-1) at 90% transparency in the visible spectrum. These electrodes were used to fabricate an operative transparent flexible touch screen. To our knowledge this is the first reported AgNW based touch sensor relying on capacitive technology.